package com.xing.serviceedu.controller;



import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.xing.commonutils.R;
import com.xing.servicebase.exceptionhandler.GuliException;
import com.xing.serviceedu.entity.EduTeacher;
import com.xing.serviceedu.entity.vo.TeacherQuery;
import com.xing.serviceedu.service.EduTeacherService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.apache.poi.ss.formula.functions.T;
import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

/**
 * <p>
 * 讲师 前端控制器
 * </p>
 *
 * @author xingfuao
 * @since 2022-01-09
 */
@Api(description = "讲师管理")
@RestController  //意思返回json数据
@RequestMapping("/serviceedu/teacher")
public class EduTeacherController {

    @Autowired
    private EduTeacherService teacherService;


    @ApiOperation(value = "所有讲师列表")
    //1.查询讲师表所有数据
    //rest风格
    @GetMapping("findAll")
    public R findAll(){
        List<EduTeacher> list = teacherService.list(null);
        return R.ok().data("item",list);
    }

    //逻辑删除讲师的方法
    @ApiOperation(value = "逻辑删除讲师")
    @DeleteMapping("{id}")
    public R deleteEdutherById(@ApiParam(name = "id",value = "讲师",required = true) @PathVariable String id){
        boolean flag = teacherService.removeById(id);
        if(flag){
            return R.ok();
        }else {
            return R.error();
        }
    }

    /**
     * 3.分页查询讲师的方法
     * current 当前页
     * limit 每页记录数
     * @param current
     * @param limit
     * @return
     */
    @GetMapping("pageTeacher/{current}/{limit}")
    public R pageListTeacher(@PathVariable long current,
                             @PathVariable long limit){
     //创建page对象
        Page<EduTeacher> pageTeacher = new Page<>(current, limit);
        //调用方法，实现分页
        //调用方法时候，底层封装，把分页所有的数据封装到，pageTeacher对象里面
        teacherService.page(pageTeacher, null);

        long total = pageTeacher.getTotal(); //总记录数
        List<EduTeacher> records = pageTeacher.getRecords(); //数据list集合

        Map map = new HashMap();
        map.put("total", total);
        map.put("rows", records);
        return R.ok().data(map);
    }


    //4.条件查询带分页的方法
    @PostMapping("pageTeacherCondition/{current}/{limit}")
    public R pageTeacherCondition(@PathVariable long current,
                                  @PathVariable long limit,
                                  @RequestBody(required = false)TeacherQuery teacherQuery){
        //创建page对象
        Page<EduTeacher> pageTeacher = new Page<>(current,limit);

        //构建条件
        QueryWrapper<EduTeacher> wrapper = new QueryWrapper<>();

        //多条件组合查询
        //mybatis 学过 动态sql:xml里面的where if test

        String name = teacherQuery.getName();
        Integer level = teacherQuery.getLevel();
        String begin = teacherQuery.getBegin();
        String end = teacherQuery.getEnd();

        if(!StringUtils.isEmpty(name)){
            wrapper.like("name", name);
        }
        if(!StringUtils.isEmpty(level)){
            wrapper.eq("level",level);
        }
        if(!StringUtils.isEmpty(begin)){
            wrapper.ge("gmt_create",begin);
        }
        if(!StringUtils.isEmpty(end)){
            wrapper.le("gmt_create",end);
        }

        //调用方法实现条件查询分页
        teacherService.page(pageTeacher, wrapper);

        long total = pageTeacher.getTotal();//总记录数
        List<EduTeacher> records = pageTeacher.getRecords(); //数据list集合
        Map map=new HashMap();
        map.put("total", total);
        map.put("rows", records);
//        return R.ok().data("total", total).data("rows", records);
        return R.ok().data(map);
    }

    //添加讲师接口的方法
    @PostMapping("addTeacher")
    public R addTeacher(@RequestBody EduTeacher eduTeacher){
        boolean save = teacherService.save(eduTeacher);
        if(save){
            return R.ok();
        }else {
            return R.error();
        }
    }

    //根据讲师ID进行查询
    @GetMapping("/getTeacher/{id}")
    public R getTeacher(@PathVariable Integer id){
        EduTeacher eduTeacher = teacherService.getById(id);
        return R.ok().data("teacher",eduTeacher);
    }

    //讲师修改功能
    @PostMapping("updateTeacher")
    public R updateTeacher(@RequestBody EduTeacher eduTeacher) throws GuliException {
        boolean flag = teacherService.updateById(eduTeacher);
        System.out.println("flag===>"+flag);

        try{
            int i=1/0;
        }catch (Exception e){
            //执行自定义异常
            throw new GuliException(20001,"执行了自定义异常处理");
        }

        if(flag){
            return R.ok();
        }else {
            return R.error();
        }
    }


}

